kernel/linux.git/tools/testing/selftests/kvm/lib/kvm_util.c, branch v6.7

KVM: selftests: Add additional pages to the guest to accommodate ucall

2023-08-02T21:41:59+00:00

Add additional pages to the guest to account for the number of pages the ucall headers need. The only reason things worked before is the ucall headers are fairly small. If they were ever to increase in size the guest could run out of memory. This is done in preparation for adding string formatting options to the guest through the ucall framework which increases the size of the ucall headers. Fixes: 426729b2cf2e ("KVM: selftests: Add ucall pool based implementation") Signed-off-by: Aaron Lewis Link: https://lore.kernel.org/r/20230729003643.1053367-7-seanjc@google.com Signed-off-by: Sean Christopherson

KVM: selftests: Rename the ASSERT_EQ macro

2023-08-02T21:34:01+00:00

There is already an ASSERT_EQ macro in the file tools/testing/selftests/kselftest_harness.h, so currently KVM selftests can't include test_util.h from the KVM selftests together with that file. Rename the macro in the KVM selftests to TEST_ASSERT_EQ to avoid the problem - it is also more similar to the other macros in test_util.h that way. Suggested-by: Sean Christopherson Signed-off-by: Thomas Huth Reviewed-by: Philippe Mathieu-Daudé Link: https://lore.kernel.org/r/20230712075910.22480-2-thuth@redhat.com Signed-off-by: Sean Christopherson

KVM: selftests: Allow specify physical cpu list in demand paging test

2023-06-07T00:29:49+00:00

Mimic the dirty log test and allow the user to pin demand paging test tasks to physical CPUs. Put the help message into a general helper as suggested by Sean. Signed-off-by: Peter Xu [sean: rebase, tweak arg ordering, add "print" to helper, print program name] Link: https://lore.kernel.org/r/20230607001226.1398889-1-seanjc@google.com Signed-off-by: Sean Christopherson

KVM: selftests: Add a helper to read kvm boolean module parameters

2023-03-24T15:27:04+00:00

Add a helper function for reading kvm boolean module parameters values. No functional change intended. Signed-off-by: Like Xu Link: https://lore.kernel.org/r/20230214084920.59787-2-likexu@tencent.com Signed-off-by: Sean Christopherson

KVM: selftests: Sync KVM exit reasons in selftests

2023-03-14T14:20:10+00:00

Add missing KVM_EXIT_* reasons in KVM selftests from include/uapi/linux/kvm.h Signed-off-by: Vipin Sharma Message-Id: <20230204014547.583711-5-vipinsh@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Add macro to generate KVM exit reason strings

2023-03-14T14:20:10+00:00

Add and use a macro to generate the KVM exit reason strings array instead of relying on developers to correctly copy+paste+edit each string. Signed-off-by: Sean Christopherson Message-Id: <20230204014547.583711-4-vipinsh@google.com> Signed-off-by: Paolo Bonzini

Merge tag 'kvm-x86-selftests-6.3' of https://github.com/kvm-x86/linux into HEAD

2023-02-15T13:34:32+00:00

KVM selftests changes for 6.3: - Cache the CPU vendor (AMD vs. Intel) and use the info to emit the correct hypercall instruction instead of relying on KVM to patch in VMMCALL - A variety of one-off cleanups and fixes

KVM: selftests: Remove duplicate macro definition

2023-02-08T14:53:14+00:00

The KVM_GUEST_PAGE_TABLE_MIN_PADDR macro has been defined in include/kvm_util_base.h. So remove the duplicate definition in lib/kvm_util.c. Fixes: cce0c23dd944 ("KVM: selftests: Add wrapper to allocate page table page") Signed-off-by: Shaoqin Huang Link: https://lore.kernel.org/r/20230208071801.68620-1-shahuang@redhat.com Signed-off-by: Sean Christopherson

KVM: selftests: Test Hyper-V extended hypercall exit to userspace

2023-02-01T22:31:27+00:00

Hyper-V extended hypercalls by default exit to userspace. Verify userspace gets the call, update the result and then verify in guest correct result is received. Add KVM_EXIT_HYPERV to list of "known" hypercalls so errors generate pretty strings. Signed-off-by: Vipin Sharma Reviewed-by: David Matlack Link: https://lore.kernel.org/r/20221212183720.4062037-14-vipinsh@google.com [sean: add KVM_EXIT_HYPERV to exit_reasons_known] Signed-off-by: Sean Christopherson

KVM: selftests: Mark correct page as mapped in virt_map()

2022-12-27T11:00:50+00:00

The loop marks vaddr as mapped after incrementing it by page size, thereby marking the *next* page as mapped. Set the bit in vpages_mapped first instead. Fixes: 56fc7732031d ("KVM: selftests: Fill in vm->vpages_mapped bitmap in virt_map() too") Signed-off-by: Oliver Upton Message-Id: <20221209015307.1781352-4-oliver.upton@linux.dev> Signed-off-by: Paolo Bonzini